Paper-feeding mechanism.



PATENTED JUNE 4, 1907 4 C. WILLIAMS. PAPER FEEDING MECHANISM.APPLIOATION FILED mm: 27, 1904. RENEWED APR. 15, 1907.

i SHBETSSHBET 1.

No. 856,122. y PATENIED JUNE 4, 1907.

c. WILLIAMS.

PAPER FEEDING MECHANISM. AAAAAAAAAAA FILED nmmv. 1904. RENEWED APR. 15,190'! 4BHBBT8-SKEET' 2. llll lll lll||llll I lllllllllllllllllllllrum-411mm mann Y I! I i 111 R W L g IATENTED JUNE 4, 1907. 0. WILLIAMS.PAPER FEEDING MECHANISM. APPLICATION rmm' JUNE 21, 1904. nnnnwnn APR.15, 1901.

4. SEEEIBSHEET 3.

mam

THE NORRIS PEYERS c No. 856,122. PATENTED JUNE 4, 1907- G. WILLIAMS.

PAPER FEEDING MECHANISM.

APPLICATION nmm JUNE 27, 1904.- nmmwnn APR. 15, 1907.

4 sums-sum Q.

0% W 69 a? v CHARLES W'ILLIAMS, OF CHICAGO, ILLINOIS, ASSIGNOR OFTHREE-FOURTHS TO WILLIAM H. COWLES AND ONE-EIGHTH TO SPOKANE,lVASI-IINGTON.

JOHN F; YOUNG, OF

PAPER-FEEDING MECHANISM.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed June 2'7, 1904. Renewed April 15, 1907. Serial No.363,242.

To all whom zit may concern.-

Be it known that I, CHARLES WILLIAMS, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Paper-Feeding Mechanism,of which the following is a specification.

My present invention relates to certain new and useful improvements inpaper feeding mechanisms of that character designed to feed paper from aroll and cut it into strips of the proper length and deliver it to aprinting press or other machine employing or acting upon sheets of paperin the operation thereof.

1 5 The invention consists of the combinations and arrangements of partshereinafter particularly described and designated in the appendedclaims.

In the accompanying drawingsFigure 1 is a side elevation of a printingpress, such as a multi-oolor press, showing my paper feeding mechanismadapted thereto 2 re lates to a detail of the connection fortransmitting motion from the press to the paper 2 5 feeding mechanismFig. 3 is a front elevation on an enlarged scale of the feedingmechanism and the cutter associated therewith;

Fig. 4 is a section on the line 4-4 of Fig. 3;

F 5 is a section on the line 55 of Fig. 3; 0 F 6 is a detail frontelevation particularly illustrating the cutting blade and feed rollers,looking in the direction of the arrow,

F 4 Fig. 7 is a vertical sectional view, substantially on the line 7 7of Fig. 4, and illus- 3 5 trating the driving connection for operatingthe sheet carrier or support; Fig. 8 is a section on the line 8-3 ofFig. 6 5 Fig. 9 is a detail sectional view on the line 9 of Fig. 3; andFig. 10 is a fragmentary view of one of 40 the toothed wheels for movingthe paper carrier.

For convenience of illustration I have shown my invention as applied toa multicolor printing press. The press with which 4 5 my invention isshown adapted in the present instance is provided with a pair ofstandards 20, by which the operating mechanism of the press issupported, and is of that character employing a series of intermittentlyrotating 5o platens 2] which are successively advanced to the feeder toreceive a sheet therefrom, and are then moved to suitable printing forms22 to present the sheets thereto to receive the impression. Theparticular type of press illustrated is a multi-color' press havingthree printing forms and adapted to make three impressions at each cycleof operations, but it is to be understood, however, that my invention isnot restricted in its employment with any particular character ofprinting press but may be applied to other forms than that illustrated.Upon the tops of the standards 20, which are provided with seats 23 forthis purpose, is mounted the frame of the feeding mechanism. This framemay be of any preferred form and in the present instance consists of endmembers 24 suitably spaced apart and tied together by rods 25 and 26.Extending outwardly from each end member 24, as shown in Figs. 3 and 7,is a bracket 27, adapted to rest upon and be'supported by the seat ofthe adjacent standard 20, such bracket being secured in position by anysuitable means, as by the bolt 28, as shown in Fig. 1. Only one of thebrackets 27 is shown in the drawings, but it is understood that theopposite end of the frame is provided with a corresponding bracketmounted in the same manner as that shown.

Journaled at each end in a bearing 29, formed on the bracket 27 at theadjacent end of the frame, is a shaft 30 which extends longitudinally ofthe frame, passing through alined openings 31 provided in the endmembers 24. This shaft has keyed to one end a ratchet wheel 32. Looselymounted on the shaft 30 between the end member 24 and the bearing 29adjacent the ratchet wheel 32, as shown in Fig. 7, is a sleeve 33.Straddling the ratchet wheel 32 is a pawl carrier consisting of a yoke34, one of the legs of which, as 35, is fixed to the sleeve 33 while theother leg, 36, is pivoted on the projecting end of the shaft 30, beingsecured thereon by a screw retained cap p ate 37. Pivoted on the yoke isa pawl 38' which is held in engagement with the ratchet whee 32 by aspring 39. The yoke 34 has an outwardly extending pin 40 upon which ispivoted one end of a pitman 41 whose other end is operatively connectedwith the driving mechanism of the press to operate the feedingmechanism. To this end the shaft 42 of the press is provided with acrank arm 43 (Figs. 1 and 2) having a crank pin 44 upon which the end ofthe pitman 41 is pivoted, the pitman being retained upon the pin as bymeans of a nut 45.

ICC

In order to vary the movement of the feeding mechanism to advance asheet of'greater or Lesser length, the connection of the p tman with thedrive shaft is made adjustable, as shown in Fig. 2. This is accomplishedby providing the end of the shaft 42 with a diametrical slot 46, shownin dotted lines in Fig. 2, the crank arm 43 being slidably seated insaid slot and held in position by a set screw 47. By moving the crankarm through or in the slot 33 the effective radius of the crank arm maybe increased or decreased, thereby correspondingly increasing ordecreasing thethrow of thepitman and varying the forward movement of theratchet wheel. The crank arm may be graduated as shown in order tofacilitate the adjustment of the same to effect the delivery of sheetsof predetermined lengths. Backward movement of the ratchet wheel isprevented by a dog 48 which is pivoted on the bracket 29 and held inengagement with the ratchet wheel by a spring 49.

Suitably'journaled on the end members 24, as at 50 is a pair of feedrollers 51 and 52 designed to advance the paper from the roll of paper53. Motion is communicated to these rollers through the medium of a gear54 fixed upon theshaft 30 and meshing with a pinion 55 on the adjacentend of the shaft 56 of the roller 51, the opposite end of such shaftbeing provided with a pinion 57 which meshes with a corresponding pinion58 on the shaft 59 of the roller 52.

The paper roll 53 is mounted upon a shaft 60 carried by brackets 61,extending upwardly from the frame of the feeding mechanism. A pair ofconical adjusting plugs 62 are secured by set screws in proper positionon the shaft 60 to prevent longitudinal movement of the roll upon theshaft. The upper ends of the brackets 61 are provided with rectangularseats 63 to receive bearing boxes 64 and 65 in which the ends of theshaft 60 are journaled. These seats, as shown, are of greater lengththan the width of the bearing boxes. held against movement in thedirection of the length of the shaft 60, by means of a pair ofdownwardly projecting ears 66 which embrace the opposite sides of thebracket on which the bearing box is mounted. The other bearing box 64,is provided with an ear 67 having an aperture in which is rotatably Imounted a screw 68, entering a threaded aperture 69 shown in dottedlines in Fig. 3 in the bracket 61 on which the bearing 64 is mounted.The shaft 60 is adapted to move longitudinally in the bearing 65, whileits other end is provided with shoulders 70 at opposite sides of thebearing 64 preventing independent longitudinal movement of the shaft insuch bearing. By turning the screw 68 it will be apparent that the shaft60 may be moved longitudinally to properly position the roll of paperheld on the shaft 'The One of these bearing boxes as 65, is

bearings 64 and 65 may be adjusted in the seats 63 to adjust the shaft60 transversely by means of adjusting and holding screws 71. One of thebearing boxes, as 64, is provided with a retarding spring, consisting inthe present instance of a leaf spring 72, which is secured in suchbearing, so that the roll shaft 60 rotates in contact with the same.Passing through an ear 73 of the bearing 64 is a thumb screw 74 whichengages the upper free end of the spring. This spring is designed to actas a brake for the shaft 60 to prevent the paper from unwinding toofreely, and the frictional engagement of the spring with the shaft maybe increased or decreased to the extent desired by adjustment of thescrew 74. 1

Preferably mounted upon the shaft 33, between the end members 24, is aloose sleeve 75 which has thereon suitably spaced adjustable collars 76held in adjusted position by set screws 77. As the paper is fed forwardby the rollers 51 and 52 from the roll 53, it passes under the sleeve 75; and the collars 76 serve to guide the paper and keep it in properalinement. By loosening the screws 77 the guiding collars 76 may bespaced to correspond with the width of the paper and also adjusted withproper relation to the position of the roll.

Suitably secured in advance of and parallel with the feed rollers .51,52 and to forwardly projecting portions 78 of the end members 24 is astationary cutter blade 79. This blade, as shown in Fig. 3, is providedat the end adjacent the ratchet'wheel 32,. with an upstanding lug 80,suitably secured by bolts 81, in which is pivoted as at 82, a cutterblade 83, provided with the usual cam 84 and spring 85, designed tosecure by the co6peration of" the pivoted blade with the stationaryblade the usual shearing cut. Fixed to the end of the cutter blade 79,opposite the pivot of the cutter 83, is an up Standing arm 86 to theupper end of which, as at 84, is one end of a helical contractile spring88 whose other end is attached, as at 89, to the free end of the cutterblade 83, as clearly shown in Figs. 3 and 6. This spring is designed toreturn or elevate the movable blade after the cutting operation and tomaintain the same in its normal elevated position. The end of the. blade83 adjacent the arm 86 is provided with an antifriction roller 90 whichengages the rear face of the arm 86 to guide the blade, such arm beingcurved or bent to conform to the line of movement of the cutter barcaused by the action of the cutter blade cam. Pivoted on a lug 91,mounted on the end of the blade 78 adjacent the arm 86, is a spindle 92,to which is attached a lever 93 whose free end extends across and backof the movable blade. Mounted on the free end of the lever 93 is a pin94 on which is journaled an antifriction roller engaging the upper edgeof the cutter blade as shown in Figs. 3 and 6. The end of the spindle 92extends in advance of the cutter, as shown in Figs. 4 and 5, and hasfixed to its forward end a finger or trip 96 designed to be engaged bythe platens to operate the cutter blade to sever the sheet. As theplaten advances it engages the trip 96, thereby rocking the spindle 92and causing the lever 93 to press upon the movable cutter blade and movethe latter into cooperation with the stationary blade, severing thestrip of paper. As soon as the trip 96 is released, by the retraction ofthe platen, the spring 88 elevates the cutter.

In order to prevent the lifting up of the rear edge and displacement ofa sheet upon the withdrawal of the cutter blade upon the severing ofsuch sheet, I provide a sheet holder or clamp located in front of thecuttor for holding the sheet until the grippers (not shown) of theplatens have taken the sheet. In the present embodiment of the inventionthis clamp comprises a pair of parallel gripping members or plates, oneof which, as 97, is stationary and supported by a bracket 98 secured asby screws 99 to the "under side of the blade 78, while the cooperatingmember consists of a movable plate 100 parallel with the member 97 andat tached, as by bolts 101, to a flexible or spring arm 102 secured asby screws 103 to an extension 104 of the lug 80. Attached to the movablecutter blade 83 is a spring arm 105 which is bent in the presentinstance in the form of a loop the free end of the same being bentdownwardly in advance of the movable blade 83 and into such position asto be moved into engagement with the flexible arm 102 when the cutterblade 83 is lowered. In order to prevent the end of the spring 105 fromslipping off the arm 102 when moved into engagenent with the latter, thearm 102 is provided with a rib or flange 106 at the front edge of thesame, which serves to hold the end of the spring upon the arm.

When the cutter blade is lowered through the medium of the mechanismheretofore described the free end of the leaf spring 105 engages theupper face of the arm 102 and presses the movable clamp member 102 intoengagement with the member 97. This action bends the spring 105 and putsit under tension to such an extent that upon the elevation of the cutterblade the end of the spring continues to hold the movable clampingmember in its clamping position until after the partial elevation of thecutter blade and until the grippers of the platen grip the sheet. Aplate 107 extending parallel with the cutter blade 78 and secured as bya bolt 108, to one of the front portions 78 of the frame, as shown indotted lines in Fig. 6, forms with the stationary cutter blade 78 acontracted throat to guide the paper to the cutter. The rear edge ofthis plate, as at 109, is preferably flared upwardly to facilitate theentrance of the edge of the paper between the guide plate and thestationary blade when a new roll of paper is put on the feedingmechanism.

In order to prevent the sheet from sagging and to hold the same inproper position to be received by the platens, I associate with thefeeding mechanism a movable carrier or support which is designed to movewith the paper in advance of the cutter and support the paper until theplaten 21 has advanced far enough to receive the same. This carrier orsupport may be of any suitable construction adapted to the attainment ofthe desired end. In the present embodiment of the invention it consistsof a pair of reciprocating flexible strips or plates 110 which ad- Vancesimultaneously with the sheet of paper being delivered and are thenretracted to permit of the severing of the strip of paper by the cutter.These plates or strips, in the present embodiment of the invention, passdiagonally between the end members 24, and are supported at the rear bythe cross rod 25 which has secured thereto a retaining piece 111 havingways 112 through which the plates reciprocate. Extending -under theblade 79 are guide sleeves 113 which terminate at the front edge of theblade 79 and are secured at their forward ends by a clamping plate 114secured by screws 115 to the bottom of the cutter blade 79. The sleeves113 extend rearwardly beyond the feed rollers and between the shafts ofthe latter, the roller 52 being provided with annular recesses, as shownin Fig. 6, to accommodate the sleeves. Suitably journaled at its ends onthe end members 14, at the rear of the feed rollers is a shaft 117 whichis provided with a pair of toothed wheels or gears 118 spaced apart adistance corresponding to the spacing of the reciprocating strips of thepaper carrier. These strips 110 are provided with teeth 1 19 formed bycutting openings in the strips, with which mesh the bevel teeth of thewheels 118. To insure the free move ment of the reciprocating strips andto prevent the binding of the teeth of the wheels 118 with the strips,the teeth of the wheels are quite short and terminate at the pitch line,the wheels being provided with flanges 118 (Fig. 10) in contact withwhich the under surface of the strips at the sides of the teeth 119 restduring the reciprocation of the paper supporting strips. Fixed on oneend of the shaft 117 which extends beyond the member 24 adjacent thesleeve 33, is an elliptical gear 120 meshing with a correspond ingelliptical gear 121 fixed on a stub shaft 122 journaled in a bearing 123on the frame. This shaft 122 has thereon a pinion 124 with which meshesa gear 125 secured on the sleeve 33. The shaft 42 being drivencontinuously in one direction an intermittent rotary motion will throughthe medium of the pawl and ratchet mechanism be imparted to the shaft33, and this rotation will be transmitted. and increased through thegearing to the feed rollers 51 and 52 and cause the paper strip to befed between such rollers a distance depending on the adjustment of thecrank arm 43 of the shaft 42. IVhile an intermittent rotary motion isimparted to the shaft 30, owing to the attachment of the yoke arm 35 tothe loose sleeve 33, this sleeve has imparted to it an oscillatorymovement, thereby eflecting, through the mechanism of the ellipticalgear drlven from such shaft, the

reciprocating movement of the paper carrier.

At the beginning of the operation of the feeding mechanism the parts arein the posi tion shown in Fig. 4, the paper support or carrier being inits retracted position. As the feed rollers turn, the paper supportingstrips are advanced, moving such strips out in front of the feed rollersso that the strip of paper rests thereon and is fed forward upon andwith the strips. have reached the limit of their forward movement asshown in Fig. 5 the. platen 21. has reached the position shown in dottedlines in that figure and the sleeve now being oscillated. in theopposite direction the strips are retracted permitting the paper to reston the platen in. position to be taken by the grippers of the latter. Byme ans of the elliptical gears, 1.20, 121, the retraction of the papercarrier may be m ade relatively faster than its advance in order to"withdraw the carrier quickly after it has performed its ofliee.

The movement of the parts is so timed that immediately upon theretraction of the paper carrier, the trip 96 is engaged by the uppersurface of the platen, actuating the movable cutter blade 33 to severthe strip of paper, and during this cutting operation and until theplaten grippers grip the sheet, the rear edge of the latter is held bythe clamp.

Immediately after the platen gripperstake the sheet, the cutter blade 83is moved up wardly far enough to release the movable clamping member,and the platen is then ad vanced to the form for the impression.

hen very short sheets are to be fed by the feeding mechanism. thereciprocating paper support is not required and may be thrown out ofoperation. To accomplish this result the gear 125 is arranged to slidelongitudinally on the sleeve 33 so as to be moved out of engagement withthe pinion 124. To this end the sleeve is provided with a slot 126 asshown in Fig. 7 into which extends a screw 127 passing through the hubof the said gear. By sliding the gear along the sleeve and out ofengagement with the pin ion 124, while the sleeve continues to rotate,motion will not be communicated to the At the time that the strips shaft117 and therefore the paper support will remain inoperative.

1. In a device of the class described, the combination withintermittently operating paper feeding means, of a cutter, areciprocating paper support, means for advancing the support with thepaper and beyond the cutter during the o eration of the feeding means,and means or operating the cutter while the feeding means are at rest.

2. In a device of the class described, the combination with paperfeeding means, of a cutter, a support movable with respect to the cutterfor supporting the paper delivered beyond the cutter by the feedingmeans, and means for operating the cutter.

3. In a device of the class described, the combination with paperfeeding means, of a cutter, a reciprocating support movable with thepaper to support the samebeyond the cutter, means to retract thesupport, and means for operating the cutter after the retraction of thesupport.

4. In a device of the class described, the combination. with paperfeeding means, of a cutter, a reciprocating paper support, and means foradvancing the support with the paper beyond the cutter and then forretracting the support upon the delivery of the paper and before theoperation of the cutter.

5. In a device of the class described, the combination with paperfeeding means, of a reciprocating paper support, means for advancing thesupport with the paper and then for retracting the support upon thedelivery of the paper at a higher rate of speed than upon its advance,and a cutter for severing the paper upon the retraction of the support.

6. In a device of the class described, the combination with a pair ofintermittently rotating feed rollers, of a reciprocating support forsupporting the paper during its de livery, means .for advancing thesupport during the rotation of the feed rollers and then retracting thesupport While the feed rollers are at rest, and a cutter for severingthe paper.

-7. In a device of the class described, the combination with a frame,and a pair of feed rollers mounted on the frame, of a pair of toothedplates for supporting the paper during its delivery, a shaft journaledon the frame, gears on the shaft for reciprocating the plates,intermeshing elliptical gears for driving the shaft, and a drivingconnection for oscillating the gears.

8. The combination with paper feeding same, an oscillating spindle towhich the lever is fixed, and a trip on the spindle and actuated by theassociated machine.

10. In a device of the class described, the combination with a paperroll support and a pair of feed rollers, a stationary blade, a pivotedcutter blade, an oscillating spindle, a

trip on the spindle, a lever fixed to the spindle and engaging thepivoted cutter blade, a guide arm, a spring attached to the guide armand the cutter blade, and a roller on the free end of the cutter blademoving on the guide arm.

11. In a device of the class described, the combination with paperfeeding means and a cutter for severing into sheets the paper deliveredby such means, of means located in front of the cutter for holding thesevered sheets against movement during the retraction of the cutter.

12. In a device of the class described, the combination with paperfeeding means and a cutter for severing into sheets the paper de liveredby $11 ch means, of a clamp located in front of and controlled by thecutter for holding the severed sheets.

13. In a device of the class described, the combination with paperfeeding means and a cutter for severing into sheets the paper deliveredby such means, of a clamp located in front of the cutter for holding therear edge of each sheet.

1 1. In a device of the class described, the combination with paperfeeding means and a cutter for severing into sheets the paper deliveredby such means, of a clamp in front of the cutter for holding the rearedge of each sheet, and an arm carried by the cutter and adapted toactuate the clamp.

15. In a device of the class described, the combination with a pivotedcutter and means for operating the cutter, of means for holding thesevered sheets until after the completion of the cutting operation andconsisting of a pair of clamping members located in front of the cutterand one of which members is movable and moved into engagement with theother member by the cutter.

16. In a device of the class described, the combination with paperfeeding means, and a pivoted cutter, of means for holding the severedsheets until after the completion of the cutting operation andcomprising stationary and movable members, and a spring arm on thecutter adapted upon the advance of the latter to engage the movablemember and press the same against'the stationary member.

17. In a device of the class described, the combination with feedrollers, of a pivoted cutter, a pair of paper holding clamps, a fleXiblearm by which one of the clamping members is carried, and a spring armattached to the cutter and adapted upon the advance of the latter toengage the movable clamping member and press the same against the othermember of the clamp.

18. In a device of the class described, the combination with feedrollers, a cutter, a paper holding clamp controlled by the cutter, apaper support movable with the paper beyond the cutter to support thepaper upon its delivery, mechanism for advancing andthen retracting thepaper support, and means for operating the cutter 19. In a device of theclass described, the combination with paper feeding rollers, of apivoted cutter, a paper holding clamp comprising a stationary and amovable member, a spring arm fixed to the cutter and adapted to engagethe movable clamping member, a reciprocating support to support thepaper as delivered, mechanism for operating the feed rollers andadvancing the support simultaneously and then retracting the carrier,and means for operating the cutter upon the retraction of the support.

20. In a device of the class described, the combination with a frame, apaper roll support mounted on the frame, a main shaft journaled on theframe, a pair of feed rolls driven from the shaft, a pivoted cutter, apa per holding clamp controlled by the cutter, means for actuating thecutter, a pair of reciprocating plates adapted to advance with andsupport the paper fed by the rolls, a shaft, gears on the shaft andengaging the reciprocating plates, a sleeve loosely mounted on the mainshaft, a ratchet wheel on said shaft, a pawl carrier provided with apawl engaging the ratchet wheel and an arm fixed to the sleeve, meansfor oscillating the yoke, and gear connections between the sleeve andthe gear shaft.

21. In a device of the class described, the combination with a frame, apaper roll support mounted on the frame, a main shaft journaled on theframe, a pair of feed rollers driven from the shaft, a cutter, areciprocating paper support adapted to advance with and support thepaper fed by the rolls, a second shaft journaled on the frame, gears onthe shaft and engaging the reciprocating support, a sleeve looselymounted on the main shaft, a ratchet wheel on the shaft, a pawl carrierhaving a pawl engaging the ratchet wheel and an arm fixed to the sleeve,a connection for oscillating the pawl carrier, and a gear connectionbetween the sleeve and the gear shaft.

22. In a device of the class described, the combination with paperfeeding means and a cutter, of a support movable beyond the cutter tosupport the paper delivered by the paper feeding means and adapted to bethrown out of operation independently of the said feeding means.

23. In a device of the class described, the combination with anintermittently driven feed roll and a cutter, of a reciprocating sup-IIO port movable beyond the cutter to support the paper delivered by thefeeding roll and adapted to be thrown out of operation independently ofthe feed roll.

24. In a device of the class described, the combination with a frame, apaper roll support mounted on the frame, a main shaft journaled on theframe, a pair of feed rollers driven from the shaft, a cutter, areciprocating paper support adapted to advance with and sup ort thepaper fed by the rolls, a sec- 0nd sha 't journaled on the frame, gearson the shaft and engaging the reciprocating support,

a sleeve loosely mounted on the main shaft, a

ratchet wheel on the shaft, apawl carrier having a awl engaging theratchet wheel and an arm ed to the sleeve, a connection for oscillatingthe pawl carrier, a gear rotating with i but slidable longitudinally ofthe main shaft, a stub'shaft, a pinion on such stub shaft into and outof engagement with which the said gear is movable, and a gear connectionbe tween the stub shaft and the shaft upon which the paper supportdriving gears are mounted.

25. In a device of the class described, the combination with a frame, apaper roll suport mounted on the frame, a main shaft ournaled on theframe, feed rollers driven from the main shaft, a cutter for severingthe paper delivered by the feed rollers, a sleeve oose on the mainshaft, and adjustableguide collars on the sleeve.

26. In a device of the class described, a support for paper rollsconsisting of a shaft, a seat, a bearing block in the seat and in whichone end of the shaft is mounted, means for moving the block to adjustthe shaft'longitudinally and transversely, a retarding spring seated inthe bearing and frictionally engaging the shaft, and means for adjustingthe spring.

27. A paper support for paper feeding mechanisms, comprising a pair offlexible strips having apertures, and gears having CHARLES WVILLIAMS.

Witnesses:

ARTHUR B. SEIBOLD, ELIZABETH MOLITOR.

teeth terminating at the pitch line and enter-

